camput: move initCache to its own function

Change-Id: I1d2029652fe4215a71b89bce178e6df8c40826b9
client: remove TODO

Change-Id: Ie2ae66a44cb87e8f48d94da29fcfc607a8c0dd70
Makefile: Mac's shell built-in echo doesn't have -n; was being passed to go

Change-Id: I792758750333c51068b91518564c8650fb8fc8e3
camput: add android child process input/input mode

Change-Id: I54c80b958c3610b5f9e9b229f68f626553241d47
android: UploadThread re-work. use pipe-to-camput-stdin model, and be more Go-like.

Change-Id: I0f598dae28e47036bf713bfde488a7af0884e932